Home / 28,134,657.40-38,827,913.52-15,745,992.52

Finding the Fourth Proportional to 28,134,657.40, 38,827,913.52 and 15,745,992.52

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Solution

The fourth proportional to 28,134,657.40, 38,827,913.52 and 15,745,992.52 is: 21,730,637.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,134,657.40 : 38,827,913.52 = 15,745,992.52 : x
  2. Step 2: Convert to fraction form
    28,134,657.40/38,827,913.52 = 15,745,992.52/x
  3. Step 3: Cross multiply
    28,134,657.40x = 38,827,913.52 × 15,745,992.52
  4. Step 4: Simplify right side
    28,134,657.40x = 611,384,035,853,126.88
  5. Step 5: Solve for x
    x = 611,384,035,853,126.88/28,134,657.40
  6. Step 6: Final answer
    x = 21,730,637.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.